package main

import (
	"fmt"
)

func main() {
	i := 0
	for ;i <= 10; { // initialisation and post are omitted
		fmt.Printf("%d ", i)
		i += 2
	}

	j := 0
	for j <= 10 { //semicolons are ommitted and only condition is present 分号可以省略
		fmt.Printf("%d ", j)
		j += 2
	}
}